Teletext system having user prompt commands

Details Teletext system having user prompt commands Teletext system having user prompt commands

1983-03-04

1985-12-03

Martin, John C.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

H04N 704

Patent

active

045569045

ABSTRACT:
Special prompt character identifying control codes are inserted in teletext data for transmission to a teletext equipped receiver. The prompt character identifying codes are detected in the receiver and applied to a symbol converter which alters the prompt characters displayed on the receiver CRT to assure that all prompt characters displayed conform to character symbols actually available on the users teletext keyboard thereby avoiding user confusion as to the particular key-strokes required to access material identified in the teletext menu.

REFERENCES:
patent: 3757037 (1973-09-01), Bialek
patent: 3879722 (1975-04-01), Knowlton
patent: 4288809 (1981-09-01), Yabe
patent: 4439761 (1984-03-01), Fleming et al.

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